1 files changed, 48 insertions, 14 deletions
diff --git a/todolists/utils.py b/todolists/utils.py
index 24101e86..7b98c887 100644
--- a/todolists/utils.py
+++ b/todolists/utils.py
@@ -1,23 +1,57 @@
-from django.db.models import Count
+from django.db import connections, router
 
-from main.models import Todolist
+from .models import Todolist, TodolistPackage
+from packages.models import Package
 
 
-def get_annotated_todolists():
-    qs = Todolist.objects.all()
-    lists = qs.select_related('creator').defer(
-            'creator__email', 'creator__password', 'creator__is_staff',
-            'creator__is_active', 'creator__is_superuser',
-            'creator__last_login', 'creator__date_joined').annotate(
-            pkg_count=Count('todolistpkg')).order_by('-date_added')
-    incomplete = qs.filter(todolistpkg__complete=False).annotate(
-            Count('todolistpkg')).values_list('id', 'todolistpkg__count')
+def todo_counts():
+    sql = """
+SELECT todolist_id, count(*), sum(CASE WHEN status = %s THEN 1 ELSE 0 END)
+    FROM todolists_todolistpackage
+    WHERE removed IS NULL
+    GROUP BY todolist_id
+    """
+    database = router.db_for_write(TodolistPackage)
+    connection = connections[database]
+    cursor = connection.cursor()
+    cursor.execute(sql, [TodolistPackage.COMPLETE])
+    results = cursor.fetchall()
+    return {row[0]: (row[1], row[2]) for row in results}
 
-    # tag each list with an incomplete package count
-    lookup = dict(incomplete)
+
+def get_annotated_todolists(incomplete_only=False):
+    lists = Todolist.objects.all().defer('raw').select_related(
+            'creator').order_by('-created')
+    lookup = todo_counts()
+
+    # tag each list with package counts
     for todolist in lists:
-        todolist.incomplete_count = lookup.get(todolist.id, 0)
+        counts = lookup.get(todolist.id, (0, 0))
+        todolist.pkg_count = counts[0]
+        todolist.complete_count = counts[1]
+        todolist.incomplete_count = counts[0] - counts[1]
+
+    if incomplete_only:
+        lists = [l for l in lists if l.incomplete_count > 0]
 
     return lists
 
+
+def attach_staging(packages, list_id):
+    '''Look for any staging version of the packages provided and attach them
+    to the 'staging' attribute on each package if found.'''
+    pkgnames = TodolistPackage.objects.filter(
+            todolist_id=list_id).values('pkgname')
+    staging_pkgs = Package.objects.normal().filter(repo__staging=True,
+            pkgname__in=pkgnames)
+    # now build a lookup dict to attach to the correct package
+    lookup = {(p.pkgname, p.arch): p for p in staging_pkgs}
+
+    annotated = []
+    for package in packages:
+        in_staging = lookup.get((package.pkgname, package.arch), None)
+        package.staging = in_staging
+
+    return annotated
+
 # vim: set ts=4 sw=4 et: